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1// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.02/******************************************************************************3 *4 * Module Name: psopinfo - AML opcode information functions and dispatch tables5 *6 * Copyright (C) 2000 - 2023, Intel Corp.7 *8 *****************************************************************************/9 10#include <acpi/acpi.h>11#include "accommon.h"12#include "acparser.h"13#include "acopcode.h"14#include "amlcode.h"15 16#define _COMPONENT ACPI_PARSER17ACPI_MODULE_NAME("psopinfo")18 19static const u8 acpi_gbl_argument_count[] =20 { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };21 22/*******************************************************************************23 *24 * FUNCTION: acpi_ps_get_opcode_info25 *26 * PARAMETERS: opcode - The AML opcode27 *28 * RETURN: A pointer to the info about the opcode.29 *30 * DESCRIPTION: Find AML opcode description based on the opcode.31 * NOTE: This procedure must ALWAYS return a valid pointer!32 *33 ******************************************************************************/34 35const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode)36{37#ifdef ACPI_DEBUG_OUTPUT38 const char *opcode_name = "Unknown AML opcode";39#endif40 41 ACPI_FUNCTION_NAME(ps_get_opcode_info);42 43 /*44 * Detect normal 8-bit opcode or extended 16-bit opcode45 */46 if (!(opcode & 0xFF00)) {47 48 /* Simple (8-bit) opcode: 0-255, can't index beyond table */49 50 return (&acpi_gbl_aml_op_info51 [acpi_gbl_short_op_index[(u8)opcode]]);52 }53 54 if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) &&55 (((u8)opcode) <= MAX_EXTENDED_OPCODE)) {56 57 /* Valid extended (16-bit) opcode */58 59 return (&acpi_gbl_aml_op_info60 [acpi_gbl_long_op_index[(u8)opcode]]);61 }62#if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT63#include "asldefine.h"64 65 switch (opcode) {66 case AML_RAW_DATA_BYTE:67 opcode_name = "-Raw Data Byte-";68 break;69 70 case AML_RAW_DATA_WORD:71 opcode_name = "-Raw Data Word-";72 break;73 74 case AML_RAW_DATA_DWORD:75 opcode_name = "-Raw Data Dword-";76 break;77 78 case AML_RAW_DATA_QWORD:79 opcode_name = "-Raw Data Qword-";80 break;81 82 case AML_RAW_DATA_BUFFER:83 opcode_name = "-Raw Data Buffer-";84 break;85 86 case AML_RAW_DATA_CHAIN:87 opcode_name = "-Raw Data Buffer Chain-";88 break;89 90 case AML_PACKAGE_LENGTH:91 opcode_name = "-Package Length-";92 break;93 94 case AML_UNASSIGNED_OPCODE:95 opcode_name = "-Unassigned Opcode-";96 break;97 98 case AML_DEFAULT_ARG_OP:99 opcode_name = "-Default Arg-";100 break;101 102 default:103 break;104 }105#endif106 107 /* Unknown AML opcode */108 109 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode));110 111 return (&acpi_gbl_aml_op_info[_UNK]);112}113 114/*******************************************************************************115 *116 * FUNCTION: acpi_ps_get_opcode_name117 *118 * PARAMETERS: opcode - The AML opcode119 *120 * RETURN: A pointer to the name of the opcode (ASCII String)121 * Note: Never returns NULL.122 *123 * DESCRIPTION: Translate an opcode into a human-readable string124 *125 ******************************************************************************/126 127const char *acpi_ps_get_opcode_name(u16 opcode)128{129#if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT)130 131 const struct acpi_opcode_info *op;132 133 op = acpi_ps_get_opcode_info(opcode);134 135 /* Always guaranteed to return a valid pointer */136 137 return (op->name);138 139#else140 return ("OpcodeName unavailable");141 142#endif143}144 145/*******************************************************************************146 *147 * FUNCTION: acpi_ps_get_argument_count148 *149 * PARAMETERS: op_type - Type associated with the AML opcode150 *151 * RETURN: Argument count152 *153 * DESCRIPTION: Obtain the number of expected arguments for an AML opcode154 *155 ******************************************************************************/156 157u8 acpi_ps_get_argument_count(u32 op_type)158{159 160 if (op_type <= AML_TYPE_EXEC_6A_0T_1R) {161 return (acpi_gbl_argument_count[op_type]);162 }163 164 return (0);165}166 167/*168 * This table is directly indexed by the opcodes It returns169 * an index into the opcode table (acpi_gbl_aml_op_info)170 */171const u8 acpi_gbl_short_op_index[256] = {172/* 0 1 2 3 4 5 6 7 */173/* 8 9 A B C D E F */174/* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK,175/* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK,176/* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, 0x81, _UNK, _UNK,177/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,178/* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,179/* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX,180/* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D,181/* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,182/* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,183/* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,184/* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC,185/* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC,186/* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13,187/* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK,188/* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22,189/* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a,190/* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30,191/* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72,192/* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74,193/* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A,194/* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61,195/* 0xA8 */ 0x62, 0x82, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,196/* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,197/* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,198/* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,199/* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK,200/* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,201/* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,202/* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,203/* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,204/* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,205/* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45,206};207 208/*209 * This table is indexed by the second opcode of the extended opcode210 * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info)211 */212const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = {213/* 0 1 2 3 4 5 6 7 */214/* 8 9 A B C D E F */215/* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK,216/* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,217/* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK,218/* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B,219/* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,220/* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK,221/* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK,222/* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,223/* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,224/* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,225/* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,226/* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,227/* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,228/* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,229/* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,230/* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK,231/* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,232/* 0x88 */ 0x7C,233};234